SYDNEY, Jan 7 (Reuters) - Australia’s south sweltered through a brutal heatwave on Wednesday that delivered temperatures above 40 degrees Celsius (104 degrees Fahrenheit) in some cities, triggering health warnings, straining power grids and causing bushfires to flare.
Meteorologists said the conditions were at their worst in six years, when catastrophic bushfires destroyed wide swathes of southeastern Australia, killing 33 people, in what became known as the Black Summer.
